


Fig. 1Diablo Lake from the North Cascades Highway
Landform
The most heavily glaciated range in the lower 48 outside Alaska. Knife ridges, hanging ice, and turquoise reservoirs in deep U-shaped valleys.
Field note
Diablo Lake is colored by glacial flour. Highway 20 is a thin permission through otherwise roadless granite. These are young, sharp mountains — the opposite of the worn Appalachians.














